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E. E. SLICK. MACHINE FOR ROLLING.

APPLICATION FILED NOV.29, I919.

1,423,268. Patented y 18, 1922.

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E. E. SLICK. MACHINE FOR ROLLING.

APPLICATION FILED NOV-29. I919.

1 ,423,268. Patented July 18, 1922.

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I 7 APPLICATION HLED NOV.29, 1919. 7 1,423,268. Patented July 18, 1922;

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E. E. SLICK.

MACHINE FOR ROLLING.

APPLICATION FILED NOV.29, 1919.

1,423,268, Patented July 18, 1922.

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HTNESS INVENTOR WWW QMN ZWQC'UQQVZ LW-WM UNITED STATES EDWIN E. SLICK, OF PITTSBURGH, PENNSYLVANIA.

MACHINE FOB ROLLING.

Application filed November 29, 1919.

1 '0 all whom ta/10y concern:

Be it known that I, EDWIN E. SLICK, a citizen of the United. States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented. a new and useful vimprovement in Machines for Rolling, of which the following a full. clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a plan view of a machine embodying the invention;

Figure 2 is a side elevation taken partly in section;

Figure 2 is a plan. view of the nested rollers and cage;

Figure 3 is a vertical central, section through the parts which engage the work;

Figures i, 5 and 6 are sections similar to Figure 3 but illustrating three modifications respectively.

The present invention relates to machines for rolling and particularly to a machine having a roller or rollers pressed against the work, so arranged to efiicientlv roll out the blank being operated upon. The roller or rollers are preferably mounted in a cage to keep them in proper position, and in alignment when more than one roller is used.

In machines of this character it is advantageous to use rollers of small diameter because the thrust against the work is concentrated in a smaller area than when a roller of larger diameter is used. Moreover, it is desirable to use solid rollers. The employment of a cage for positioning the rollers permits small rollers to be used and permits such rollers to be solid, since it is not necessary to bore them for any supporting or aligning shaft. In the illustrated embodiment of the invention the work is carried on a work support, illustrated as a supporting plate, and the blank is rolled out and thinned by means of a series of small rollers which are pressed against the work by means of a thrust inemher, illustrated as a thrust plate, the thrust member and work support being relatively movable so that the rollers are caused to travel over the surface of the work in rolling contact therewith.

Other features of the invention relate to certain arrangements and combinations of Specification of Letters Patent.

'12 on the bolts which support it.

Patented July 18, 1922.

Serial No. 341,390.

parts hereinafter described and more particularly pointed out in the claims, the advantages of which will. be apparent to one skilled in this art from the following description.

Referring to the embodiment of the invention illustrated in Figures 1 to 3 of the drawings, the work, which is illustrated as a previously heated flat plate or sheet metal disk, is carried on a work support 2.

comprises two semi-circular blocks 6, the

inner edges of which are concave to fit around and guide the rollers 8. A band 7 fits around the two blocks 6 and holds them together. The thrust plate 4 is mounted on a rotating head 8, and is made of hardened steel to withstand the wear from the rollers. The thrust plate 4; and cage 5 are held on the head 8 by means of rings 9 and 10, which are supported on the head 8 by means of bolts 11. The ring 9 has countersunk bolt holes for the flanges Threaded on the lower ends of the bolts 11 are nuts 13 which support the ring 10. By removing the nuts 13, the ring 10 can be taken off and the cage 5 released. Then, if it is desired to take off the work plate 3, it can be taken off by loosening the nuts 13.

A centering stud. 15 centers the work plate 4: on the head 8 and a pin 16 holds the work plate and head against relative rotation. The cage 5 is held so that it can freely rotate in its supporting ring 10. Sufficient clearance is provided between the cage 5 and the work so that the cage may turn freely relative thereto.

The work supporting plate 2 is made of hardened steel or cast chilled iron and is supported on a head 17. It is centered on the head by means of a hollow stud 18 and is prevented from rotating relatively to the head. 18 by means of a pin 19. A spring pressed stud 20 projects through the Work cages against rotation. The heads 8 and 17 are rotated in the same direction, the head 8 being driven substantially as shown in l igure 2. The head 17 is provided with a gear 70 by means of which it is rotated.

. The plunger 45, which extends down from the head 17, has a hydraulic plunger similar to that shown in Figure 2 so that the work may be put under pressure while the heads 8 and 17 are rotated. Since the head 8 and its thrust plate 60, and the head 17 and its thrust plate 61. are rotated in the same direction, the two sets oi. rollers 62 and 63 are driven in the same direction and serve to rotate the blank around between them.

In Figure 5 is shown another modification in which one of the heads 8 and 17 is stationary and the other is rotated. As shown in Figure 5, the head 17 has a work sup port 80 having a conical upper surface. The

head. 8 has a thrust plate 81 with a conical lower surface. Two conical rollers 82 and 83 are held in a cage 84 and by the relative rotation of the work support and thrust plate 81, are moved around over the work piece to roll it into a tapered disk. As shown in Figure 5, this disk is not only tapered but is dished, which form. of disk is particularly desired in the construction of certain types of automobile wheels.

In Figure 6 is illustrated still another modification in which two work pieces may be operated on by a single set of rollers. As shown in Figure 6, there are two work supports and 91 for the upper and lower work pieces, respectively. Between these two work supports is a cage 92 for guiding the plurality of rollers-93. The cage and rollers are arranged substantially as shown in Figures 2 and 3. The cage 92 is sup ported on a fixed part of the machine 94 and held against rotation. The two thrust plates 90 and 91 are forced against each other and are rotated at the same speed but in opposite directions.

\Vhile the heads 8 and 17 are shown as rotating about a vertical axis, it is obvious that such axis of rotation might be horizontal or inclined it more convenient in the particular machine to he built. While the machine is illustrated as operating upon circular blanks to roll them into tapered disks other work pieces may be used and other shapes rolled. For example, a square blank may be used and a shape rolled "from it and the projecting corners trimmed. oil it de sired. Instead of a tapered shape, other things may be rolled and the rolling may be restricted to a more limited annular area than that indicated in the drawings. For example, an annular zone only might be rolled in the work. The invention in its broader aspects is not limited to rolling circular shapes or to rolling annular areas on work pieces, since the general arrange ment of a roller or rollers and the supporting or aligning means therefor may be used tor other types of rolling apparatus. Instead of the work supporting member anti thrust member rotating at right angles to the axis of the roller or rollers, as illustrated in the drawings, other arrangements of work supporting means might be em;- ployed, such for example as rollers through which the work is fed with a cage for supporting trictionally driven rollers between them. In. other words, the advantage of the present invention, and particularly that feature of the present invention which rclatesto the employment of comparatively small rollers pressed into rolling contact with the work and properly positioned by means of a cage, may be employed in a wide variety of rolling machines.

The present invention is therefore not limited to its illustrated embodiment but may be otherwise embodied within the scope of the following claims.

By the words roller system in my claims, I intend to cover either one roller or a plurality of rollers in the combination claimed.

I claim:

1. In a rolling machine, a worlr-supporting member and a thrust member, connections arranged to impart relative rotation thereto around a stationary axis, an imperiorate system of rolling elements between the members, and a holding device for the system of rolling elements arranged to hold it in fixed relation to the center of rotation, substantially as described.

2. In a rolling machine, a work-supporting member and a thrust member, one of said members being mounted for rotation about a fixed axis, a system of rolling elements between the members arranged to move in circular paths relative to the blank, a cage engaging the exterior of the rolling elements and holding them in the same position relative to the center of rotation, and connections arranged to impart relative rotation about a fixed axis to the said members, substantially as described.

3. In a rolling machine, a work-supporting member and a thrust member, one of said members being mounted for rotation about a fixed axis, a roller system between the members arranged to move in a circular path relative to the blank, a cage engaging the exterior of the roller system to hold it in fixed relation to the cage and the center of rotation. and connections arranged to impart relative rotation about a fixed axis to the thrust member and the work-supporting member, substantially as described.

4. In a rolling machine, a work-supporting member and a thrust member, one of:

said members being mounted for rotation about a fixed axis, at least two series of rolling elements between the members, a cage engaging the exteriors of the two series and holding them in the same relative positions, and connections arranged to impart relative rotation about a fixed axis to the thrust memher and the Work-supporting member, substantially as described.

5. In a rolling machine, a Work-supporting member and a thrust member, connections arranged to impart relative rotation thereto around a fixed axis, a system of sub-- stantially imperforate rolling elements be tween. the members, and a cage arranged to hold the rolling elements in the same relative angular positions, substantially as described.

6. In a rolling machine, a Work-support ing member and a thrust member, connections arranged to impart relative rotation thereto around a fixed axis, a system of substantially imperforate rolling elements bemember than the inner rolling elements whereby the blank is tapered towards its periphery, substantially as described.

7. In a rolling machine, a Work-supporting member and a thrust member, connections arranged to impart relative rotation thereto around a stationaryaxis an imperforate system of rolling elements between the members, a holding device for the system of rolling elements arranged to hold it in fixed relation to the center of rotation, means for forcing the members toward each other, and a stop arranged to limit said movement, substantially as described.

In testimony whereof, I have hereunto set my hand.

EDWIN E. SLICK. 

